NethSecurity is described as 'All the functionalities of a modern Next-Gen firewall in few clicks: MultiWAN, Deep Packet Inspection, VPNs, Threat Protection' and is a Firewall in the security & privacy category. There are more than 25 alternatives to NethSecurity for a variety of platforms, including Windows, Linux, Android, iPhone and Mac apps. The best NethSecurity alternative is Portmaster, which is both free and Open Source. Other great apps like NethSecurity are simplewall, Fort Firewall, NetLimiter and TinyWall.